#include "error.h"
/**
- * Paraslash's version of realloc().
+ * Adu's version of realloc().
*
* \param p Pointer to the memory block, may be \p NULL.
* \param size The desired new size.
}
/**
- * Paraslash's version of malloc().
+ * Adu's version of malloc().
*
* \param size The desired new size.
*
}
/**
- * Paraslash's version of calloc().
+ * Adu's version of calloc().
*
* \param size The desired new size.
*
}
/**
- * Paraslash's version of strdup().
+ * Adu's version of strdup().
*
* \param s The string to be duplicated.
*
* Append \p b to \p a.
*
* \return If \a a is \p NULL, return a pointer to a copy of \a b, i.e.
- * para_strcat(NULL, b) is equivalent to para_strdup(b). If \a b is \p NULL,
+ * adu_strcat(NULL, b) is equivalent to adu_strdup(b). If \a b is \p NULL,
* return \a a without making a copy of \a a. Otherwise, construct the
* concatenation \a c, free \a a (but not \a b) and return \a c.
*
}
/**
- * Split string and return pointers to its parts.
+ * Split a string and return pointers to its parts.
*
* \param args The string to be split.
* \param argv_ptr Pointer to the list of substrings.
* \param delim Delimiter.
*
* This function modifies \a args by replacing each occurance of \a delim by
- * zero. A \p NULL-terminated array of pointers to char* is allocated dynamically
+ * zero. A \p NULL terminated array of pointers to char* is allocated dynamically
* and these pointers are initialized to point to the broken-up substrings
* within \a args. A pointer to this array is returned via \a argv_ptr.
*
* \return The number of substrings found in \a args.
*/
-__must_check unsigned split_args(char *args, char *** const argv_ptr, const char *delim)
+unsigned split_args(char *args, char *** const argv_ptr, const char *delim)
{
char *p = args;
char **argv;
return n;
}
-enum line_state_flags {LSF_HAVE_WORD = 1, LSF_BACKSLASH = 2, LSF_QUOTE = 4};
static int get_next_word(const char *line, char **word)
{
+ enum line_state_flags {LSF_HAVE_WORD = 1, LSF_BACKSLASH = 2,
+ LSF_QUOTE = 4};
const char *in;
char *out;
int ret, state = 0;
return ret;
}
+/**
+ * Free an array of words created by create_argv().
+ *
+ * \param argv A pointer previously obtained by \ref create_argv().
+ */
void free_argv(char **argv)
{
int i;
}
/**
+ * Split a line into words which are separated by whitespace.
+ *
+ * In contrast to gengetopt's string parser, double quotes, backslash-escaped
+ * characters and special characters like \p \\n are honored. The result
+ * contains pointers to copies of the words contained in \a line and has to be
+ * freed by using \ref free_argv().
+ *
+ * \param line The line to be split.
+ * \param result The array of words is returned here.
+ *
* \return Number of words in \a line, negative on errors.
*/
int create_argv(const char *line, char ***result)
free(argv);
return ret;
}
+
+char *absolute_path(const char *path)
+{
+ char *cwd, *ap;
+ long int path_max;
+
+ if (!path || !path[0])
+ return NULL;
+ if (path[0] == '/')
+ return adu_strdup(path);
+
+#ifdef PATH_MAX
+ path_max = PATH_MAX;
+#else
+ /*
+ * The result of pathconf(3) may be huge and unsuitable for mallocing
+ * memory. OTOH pathconf(3) may return -1 to signify that PATH_MAX is
+ * not bounded.
+ */
+ path_max = pathconf(name, _PC_PATH_MAX);
+ if (path_max <= 0 || path_max >= 4096)
+ path_max = 4096;
+#endif
+ cwd = adu_malloc(path_max);
+ if (!getcwd(cwd, path_max)) {
+ free(cwd);
+ return NULL;
+ }
+ ap = make_message("%s/%s", cwd, path);
+ free(cwd);
+ return ap;
+}